18973689

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 30480384

約数和(自身を除く): 11506695

約数列:

[1, 3, 7, 21, 23, 69, 161, 163, 241, 483, 489, 723, 1141, 1687, 3423, 3749, 5061, 5543, 11247, 16629, 26243, 38801, 39283, 78729, 116403, 117849, 274981, 824943, 903509, 2710527, 6324563, 18973689]

約数ペア:

[(1, 18973689), (3, 6324563), (7, 2710527), (21, 903509), (23, 824943), (69, 274981), (161, 117849), (163, 116403), (241, 78729), (483, 39283), (489, 38801), (723, 26243), (1141, 16629), (1687, 11247), (3423, 5543), (3749, 5061)]